Oil-well sand cleaner



Feb. 9 1926.

J. B. CLARK OIL WELL: SAND CLEANER Filed Nov 19 1924 (/4 mes 5. (7a 7%"Patented Feb. 9, 1926.

PATENT OFFICE.

JAMES B. CLARK, or MIDWEST, WYOMING.

OIL-WELL SAND CLEANER.

Application filed November 19, 1924. Serial 1%. 750,876.

T 0 all whom it may concern:

Be it known that I, JAMEs B. CLARK, a citizen of the United States,residing at llvlidwest, in the county of Hot Springs and State oflVyoming, have invented new and useful Improvements in Oil-Well SandCleaners, of which the following is a specification.

The object of my present invention is the provision of a peculiar andadvantageous device for cleaning oil'wells after they are drilled andare producing oil.

To the attainment of the foregoing, the invention consists in theimprovement as hereinefter described and definitely claimed.

In the accompanying drawings, forming part of this specification Figure1 is a view ofmy novel device with parts in section.

Figure 2 is an enlarged horizontal section taken in the plane indicatedby the line 22 of Figure 1.

Figure 3 is an enlarged plan of the lower end of the device on the samescale as Figure 2.

Similar numerals of reference designate corresponding parts in all ofthe views of the drawings. 4

Among other elements my novel device comprises a metallic barrel 1 whichmay be and preferably is in one piece as illustrated. The upper portionof the said barrel is of smaller diameter than an intermediate portion'11 thereof to permit of the slipping on the barrel of a scratcher coil2. Connected at 3 to the upper end of the barrel 1 is a member 4 havinga threaded shank 5 and also having vent apertures 6 at its four sides,-the said apertures being -in communication with the interior of thebarrel 1 and being designed to permit air, water and oil to escape atthe upper end of the device as mud or sand is forced in at the lower endof the device'by the motion of the tool when cleaning; This will bebetter understood when it is stated that a bit -7 is co nnected at 8' toa union 9, and that the said union 9 is connected at 10 to the lower endof the barrel 1 and abuts against the enlarge; ment or circumferentialflange 11 on the barrel. It will also be noticed that an annular valveseat 12 is interposed between the upper end of the bit 7 and the lowerend of the barrel 1 for cooperation with a flap valve 13, .and that thesaid bit is provided with blades 14 and with a plurality of apertures15, the latter being designed for the passage into the barrel of mud orsand. The said flap valve 13 permits the upward passage of mud or sandinto the barrel, and holds the mud or sand against downward movement.The bit 14 because of its cruciform blade construction, Figures 1 and 3,is adapted to chop the mud or sand and thoroughly mix the same whilefacilitating the passage of the mixture to the interior of the barrel 1,and at the same time it contributes toward cleaning of the casing.

The scratcher coil 2 is preferably made up of a body of spring steel,and teeth of piano wire or other appropriate material carried by thesaidbody, The said coil is adapted to scratch the walls of the casingincident to the lowering of the device in the well so that the scratcherwill remove paraffine and other foreign substance from the casing. Itwill also be understood that when the bit is in or on the mud or sandthat is tO\ be removed, the scratcher coil will serve to keep the mudthoroughly mixed, and as the device swings it will serve to remove loosesubstance and keep the sand open.

It will be apparent from the foregoing that when used in the mannerdescribed my novel devicewill obviate the necessity of using a bailcr ina well.

Notwithstanding the practical advantages of my novel device it will beapparent that the same is simple and inexpensive in construction and iswell adapted to withstand the usage to which oil well devices areordinarily subjected.

As will be readily understood from Figure 1 the scratcher coil 2 isarranged above the barrel 1 and is interposed and held between anabutment afforded by the enlargement 11 of the barrel and an abutmentformed by the lower end of the member 4:

Having described my invention, what I claim and desireto secureLetters-Patent,

An oil well cleaner comprising a barrel having spaced abutments, acoiled, toothed scra-tcher surrounding the barrel and interposed betweenthe said abutments, a connecting member carried at the upper end of thebarrel and having a reduced portion interior of the bit and the interiorof the and. apertures in communication with the barrel, an annular valveseat disposedin the interior of the barrel, a union connection to unionand interposed between the barrel and 1 the lower end of the barrelbelow the lower the bit, and. a flap valve for cooperation with 5abutment thereof, a bit having cruciform said valve seat.

blades and also having aperatures between In testimony whereof I aflixmy signature. the blades and in communication with the I JAMES B. CLARK.

